[POLICY] Use common secret template in drools

Use common secret template in drools module instead of putting db
credentials in a single secret file to allow usage of external secret
mechanism.

For now db creds are hardcoded but will be remove in further commits.

Issue-ID: OOM-2342
Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>
Change-Id: I377b71d76b0b37e919ea841586bb6d5c22107952
diff --git a/kubernetes/policy/charts/drools/templates/secrets.yaml b/kubernetes/policy/charts/drools/templates/secrets.yaml
index 47e0b8c..7fb84b5 100644
--- a/kubernetes/policy/charts/drools/templates/secrets.yaml
+++ b/kubernetes/policy/charts/drools/templates/secrets.yaml
@@ -13,6 +13,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+{{ include "common.secret" . }}
+---
 apiVersion: v1
 kind: Secret
 metadata: